PNG Publications Online
These works are available for download here or on other websites.
- CONRAD, Jo Ann; CONRAD, Robert J., authors. 1987. "The symbolization of /ə/ in Mufian (Southern Arapesh)."
- DAVIES, H. John, author. 1980. "The phonological status of the semivowel in Kobon."
- FRANKLIN, Karl J., author. 1974. "A diachronic note on Mendi vowels."
- KING, Phil, author. 2007. An Acoustic Description of Central Vowels in Three Austronesian Languages of New Ireland.
- MCELHANON, Kenneth A., author. 1967. "Selepet vocoid clusters."